Fix the auido noise issue with FEC enabled 
BUG = issue 652
TEST=manual test
Review URL: https://webrtc-codereview.appspot.com/720006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2601 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed